It's the harshest winter in memory, and the gnomes' very existence is in danger. Eager to help, Queen Fjellrose betrays one of their strictest rules and goes out looking for the Blue Horn, a magical instrument that can alter the … Ane Viola Semb, Johan Tinus Lindgren, Nikoline Ursin Erichsen, Simen Bakken, Sigve Bøe, Toralv Maurstad, Per Christian Ellefsen Added on Amazon Prime 2023-03-13.